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A new study published in Science Advances reveals that malaria played a major role in shaping early human evolution. Caused by Plasmodium falciparum, the disease influenced where humans could live across Africa between 74,000 and 5,000 years ago.Researchers found that populations avoided high-risk malaria regions, leading to fragmentation of groups and influencing how humans migrated, mixed, and evolved over time.These findings challenge the long-held view that climate alone drove early human settlement patterns, highlighting disease as a powerful force in shaping human diversity and evolutionary history.

A new study from APC Microbiome Ireland reveals that coffee does more than wake you up — it reshapes the gut-brain connection. Published in Nature Communications, the research shows that both regular and decaf coffee can alter the gut-brain axis, influencing mood, stress, and cognition.Interestingly, decaf improved memory and learning, while caffeine boosted alertness and reduced anxiety. Scientists also found changes in beneficial gut bacteria among coffee drinkers.The takeaway? Coffee’s health effects go beyond caffeine, potentially supporting both mental and digestive well-being.

Scientists have discovered a new organelle called the hydrogenobody inside gut microbes of cattle, shedding light on methane emissions. Found in single-celled ciliates living in the rumen, this structure produces hydrogen, which fuels methane-producing microbes.Since ruminants contribute nearly 30% of agricultural methane, this finding could open new ways to reduce emissions. Researchers observed that more ciliates meant higher methane output, especially species like Vestibuliferida.Targeting these microbes may help cut emissions — but without harming milk and meat production remains a key challenge.

Peptide therapies are booming, promising solutions for everything from joint pain to brain fog — but many remain unproven and unregulated. While some peptides, like those used in Ozempic, are FDA-approved, others lack proper human studies and may carry unknown risks.Experts warn that DIY use, often involving unverified online products, can be dangerous due to purity issues and potential side effects. There are also concerns that regulatory changes by the FDA could make these products more accessible without strict safety checks.For now, researchers advise waiting for solid clinical evidence before using peptides as health treatments.

New research presented at Digestive Disease Week 2026 highlights how stress combined with late-night eating can harm gut health. People with high stress who consumed over 25% of daily calories after 9 p.m. were significantly more likely to experience digestive issues like constipation and diarrhea.The study also found reduced diversity in the gut microbiome, suggesting a link through the gut-brain axis.While not proving cause and effect, the findings emphasize chrononutrition — the timing of meals — as a key factor. Simple habits like eating earlier may support better digestion and long-term gut health.

A large clinical trial published in The Lancet reveals that simply drinking more water may not be enough to prevent kidney stones from returning. Despite using smart water bottles, coaching, reminders, and incentives, participants struggled to maintain the high fluid intake needed for prevention.Although hydration levels improved, it didn’t significantly reduce stone recurrence across the group. Researchers say the challenge lies in long-term adherence and the fact that fluid needs vary by individual.The findings highlight the need for personalized prevention strategies, combining tailored hydration goals with medical and lifestyle interventions for better long-term outcomes.

Scientists have developed a promising new treatment that can cut “bad” cholesterol by nearly 50% — without using statins. The approach targets PCSK9, a key protein that limits the body’s ability to remove LDL cholesterol from the blood.Using innovative DNA-based molecules called PPRHs, researchers blocked PCSK9 production, allowing more LDL receptors to clear cholesterol from circulation.In lab and animal studies, a single dose significantly reduced cholesterol levels with fewer side effects.If validated in humans, this could offer a safer, more targeted alternative for managing heart disease risk.

Scientists have discovered a strange ancient species, Tanyka amnicola, from 275 million years ago in Brazil — and its jaw is unlike anything seen today. The fossilized jaws show a unique twisted structure, with sideways-pointing teeth and inner surfaces lined with tiny denticles, likely used for grinding plant material.Belonging to early tetrapods, this “living fossil” may have resembled a salamander and lived in freshwater environments.The discovery challenges assumptions that most early tetrapods were carnivores, offering new insights into ancient ecosystems and evolution during the Permian period.

Think you need intense, exhausting workouts to build muscle? New research from Edith Cowan University suggests otherwise. Experts highlight the power of eccentric exercise — movements where muscles lengthen, like lowering weights or walking downstairs.These exercises generate greater force with less energy, helping improve strength and muscle size without extreme fatigue or soreness. Even just five minutes a day of simple moves like chair squats or wall push-ups can make a difference.This approach is especially beneficial for beginners, older adults, and those with health conditions, making fitness more accessible, sustainable, and easier to stick with long term.

In a groundbreaking study, scientists have engineered bacteria to function using just 19 amino acids instead of the usual 20, challenging a fundamental rule of biology. By redesigning key cellular machinery like the ribosome, researchers successfully removed one amino acid (isoleucine) while maintaining function.Using advanced AI tools such as AlphaFold, the team redesigned proteins to preserve their structure and activity.This achievement not only hints that early life may have used simpler building blocks, but also opens doors to synthetic biology innovations, enabling scientists to engineer cells with entirely new capabilities.